Robinhood - Free stock trading service.
Richie Invest - An app that lets you invest with your friends
DataSpark - Get access to exclusive hedge-funds stock research, for free
Raiz - Invest spare change automatically from everyday purchases into a diversified portfolio.
SparkFin - Learn the markets for free, profit forever.
Bamboo - Bamboo is a continuous integration and deployment tool that ties automated builds, tests and releases together in a single workflow.